Why don't people like thin lips?

A lot of models have thin lips and they are considered very attractive but even time I've asked someone they always seems to hate thin lips. I personally have thin lips and it's been an insecurity of mine since my early teens, I'm not incredibly insecure but I do overline them with lipstick/lip liner a lot and make them look bigger using makeup which seems to work well. I'm just curious as to why. I can understand almost non existent lips because they tend to look unprofessional but I'm talking lips like Cara Delevingne or Emma Watson etc
Why don't people like thin lips?

Why don't people like thin lips?


Why don't people like thin lips?





Why don't people like thin lips?
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